javascript - 在javascript中提取由两个不同短语分隔的大字符串内部的字符串

Question

我在网上搜索了一种方法来做到这一点，到目前为止我只遇到了一些并不真正符合我正在寻找的标准的例子......

我想提取出现在“received from:”和“The information Transmission”之间的字符串

通常该字符串将显示为:

2014-01-23 13:26:13 - Jim Superman received from: JIM.superman@superheroes.com

please bla bla bla, we need a new super hero in the complex

supermanager of managers test bla bla [wawa]

The information transmitted

Answer 1

听起来像一个简单的子字符串:

 var str = ...; // Where ever it came from

 str = str.substring(
         str.indexOf("received from:") + "received from:".length, 
         str.lastIndexOf("The information transmitted"));

 console.log(str); // Check the results

请注意如何将长度添加到“接收自:”。这样，文本“received from:”就不会包含在您的输出中。